An air gun tip used for underwater high-pressure gas ice-breaking experiments

Abstract

The invention belongs to the field of ship and marine engineering experiments, mainly applied to the fluid-solid coupling experiment research of the high-pressure gas load ice-breaking, and particularly relates to a gas gun head used for an underwater high-pressure gas ice-breaking experiment. The gas gun head overcomes the deficiency that a gun head adopted in a traditional method can only produce an upward high-pressure gas flow (cylindrical high-pressure gas) to directly impact the ice surface. According to the gas gun head, through the annular gas outlet design of the gun head, the ball-like underwater high-pressure bubbles can be produced during gas injecting, and through the action of a material frisbee and a height limiter, the kinetic energy and impacting force directly facing theice surface are all offset during high-pressure gas injecting. The gas gun head is simple in structure, low in manufacturing cost and safe and convenient to operate, plug and play can be achieved, andthe high practicality and wide applicability are achieved.

Description

technical field [0001] The invention belongs to the field of ship and marine engineering experiments, and is mainly used in the research of fluid-solid coupling experiments of high-pressure gas load ice breaking, and in particular relates to an air gun tip used for underwater high-pressure gas ice breaking experiments. Background technique [0002] With the heating up of the Arctic shipping lanes and the development of polar resources, the demand for new ice-breaking technologies continues to increase. The traditional way of breaking ice is nothing more than relying on its strong hull structure, strong propulsion capacity, assisted by a flushing system and a fast roll system, through direct contact with the ice layer, relying on power and self-weight to brutally crush ice . High-pressure gas ice breaking has a fundamental innovation. The mechanism first compresses the air as much as possible, and then launches the high-pressure air under the ice. The high-pressure air expan...

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Problems solved by technology

[0006] (1) Using explosives as the gas source and igniting underwater to release high-pressure gas is not only dangerous, but also expensive and difficult to operate, which is not conducive to repeated experiments;

[0007] (2) Electric sparks are used as the gas source to generate underwater high-pressure bubbles. Due to voltage limitations, it is difficult to generate large-sized bubbles, and excessive experimental voltage will also pose safety hazards;

[0008] (3) Using a high-pressure air gun as the air source, less consideration is given to the shape of the air gun and the tip of the gun, and it is difficult to produce an ideal underwater bubble shape, which will adversely affect the measurement and utilization of experimental results

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